Solve for r, s
r=-1
s=9
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r=-1
Consider the first equation. Subtract 5 from 4 to get -1.
3\left(-1\right)+2s=15
Consider the second equation. Insert the known values of variables into the equation.
-3+2s=15
Multiply 3 and -1 to get -3.
2s=15+3
Add 3 to both sides.
2s=18
Add 15 and 3 to get 18.
s=\frac{18}{2}
Divide both sides by 2.
s=9
Divide 18 by 2 to get 9.
r=-1 s=9
The system is now solved.
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